35 lines
No EOL
964 B
C++
35 lines
No EOL
964 B
C++
#include <GL/glew.h>
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#include <GL/gl.h>
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#include "mesh2d.h"
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Mesh2D::Mesh2D(int vertexCount, float *vertices) : vertexCount(vertexCount) {
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// Generate buffers
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glGenBuffers(1, &VBO);
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glGenVertexArrays(1, &VAO);
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// Bind vertex data to VBO
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glBindBuffer(GL_ARRAY_BUFFER, VBO);
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glBufferData(GL_ARRAY_BUFFER, vertexCount * (2 + 2) * sizeof(float), vertices, GL_STATIC_DRAW);
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// Bind vertex attributes to VAO
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glBindVertexArray(VAO);
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// Vertex coords
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glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, (2 + 2) * sizeof(float), (void*)(0 * sizeof(float)));
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glEnableVertexAttribArray(0);
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// Tex coords
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glVertexAttribPointer(1, 4, GL_FLOAT, GL_FALSE, (2 + 2) * sizeof(float), (void*)(2 * sizeof(float)));
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glEnableVertexAttribArray(1);
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}
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Mesh2D::~Mesh2D() {
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glDeleteBuffers(1, &VBO);
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glDeleteVertexArrays(1, &VAO);
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}
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void Mesh2D::bind() {
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glBindBuffer(GL_ARRAY_BUFFER, VBO);
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glBindVertexArray(VAO);
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} |